Year-end Sale % OFF 
Abstract
Food waste has become a critical issue in modern society, especially in the urbanized and fast-growing cities of Asia. The increase in food waste has serious negative impacts on environmental sustainability, water and land resources, and food security, as well as climate and greenhouse gas emissions. Through a specific case study in Da Nang City, Vietnam, this paper examines the extent of food waste generation at the consumption stages, the eating habits of consumers, food waste from households and service establishments, as well as prospects for the reuse of food waste as pig feed. The results of this study indicate that per capita food waste generation in Da Nang has increased from 0.39 to 0.41kg in 2016, 0.46 in 2017, and reached 0.52kg in 2018. According to the results of our consumer survey, 20% of respondents stated that they often generate food waste, 67% stated they sometimes do, and 13% stated they rarely do. Furthermore, 66% of surveyed households stated that their food waste is collected and transported by pig farmers to be used as feed for pigs. The use of food waste as feed for pigs is a typical feature in Da Nang. The study also found that there is a high level of consumer awareness and willingness to participate in the 3Rs (reduce, reuse, recycle) program, which was being initiated by the city government. In service facilities such as resorts and hotels, daily food waste reached 100–200 kg in large facilities and 20–120 kg in small facilities. This waste was also collected for use in pig farming. However, there has been a fall in demand for pig feed in line with a decrease in the number of pig farms due to the African swine fever epidemic that occurred during the implementation of this study. This paper suggests that there is a strong need to take both consumer-oriented waste prevention and waste management measures, such as waste segregation at source and introduction of effective food waste recycling techniques, to ensure that food waste can be safely and sustainably used as a “valuable resource” rather than “wasted.”
Highlights
In many large cities in Vietnam, food residues account for a large proportion of the discarded municipal solid waste [32,33,34,35,36,37]
This case study on food waste in Da Nang City, Vietnam, has once again confirmed that food waste is being generated more and more at the consumption stage in urbanized cities in developing economies, even more so than in developed countries
There is a strong need for Da Nang to formulate specific policies and regulations aimed at preventing and reducing food waste at source and in the consumption stage, while at the same time minimizing its negative impacts on the environment
Summary
It is estimated that about a third of the food produced for human consumption, or 1.3 billion tons, is lost at different stages of the food supply chain annually [1]. The environmental, social, and economic losses from food waste cost the global economy USD 2.6 trillion [2]. Environmental impacts occur from both food production and food waste management perspectives. The production stage requires 250 km of water and 1.4 billion hectares of land, with about 30% of the agricultural land used to produce uneaten food [3]. Food loss and waste emit 4.4 Gt CO2eq of greenhouse gases (GHG), accounting for 8% of the total anthropogenic GHG emissions annually [4]. Looking at global food waste management, 58% of food waste from the distribution and marketing
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
